255499 has 2 divisors, whose sum is σ = 255500.
Its totient is φ = 255498.
The previous prime is 255487. The next prime is 255503. The reversal of 255499 is 994552.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 255499 - 25 = 255467 is a prime.
It is not a weakly prime, because it can be changed into another prime (255419) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127749 + 127750.
It is an arithmetic number, because the mean of its divisors is an integer number (127750).
2255499 is an apocalyptic number.
255499 is a deficient number, since it is larger than the sum of its proper divisors (1).
255499 is an equidigital number, since it uses as much as digits as its factorization.
255499 is an evil number, because the sum of its binary digits is even.
The product of its digits is 16200, while the sum is 34.
The square root of 255499 is about 505.4690890648.
The cubic root of 255499 is about 63.4545937822.
The spelling of 255499 in words is "two hundred fifty-five thousand, four hundred ninety-nine".